Hitachi HDS721050CLA362 Specifications page 242

Output Parameters To The Device
Sector Count
Sector Number
Cylinder High/Low
H
Input Parameters From The Device
Sector Count
Sector Number
Cylinder High/Low
H
HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
The number of continuous sectors to be transferred. If zero is specified, then 256
sectors will be transferred.
The sector number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 0 - 7. (L=1)
The cylinder number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 8 - 15 (Low), 16 - 23 (High). (L=1)
The head number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 24 - 27. (L=1)
The number of requested sectors not transferred.
unrecoverable error occurs.
The sector number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 0 - 7. (L=1)
The cylinder number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 8 - 15 (Low), 16 - 23 (High). (L=1)
The head number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 24 - 27. (L=1)
238
This will be zero, unless an